What is "numeric" key in Trainer?

Q: What is "numeric" key or what does "numeric" mean in the trainer?
A: It means "numpad" (not the numbers on top of keyboard).

Q: Why not write "numpad" then?
A: Because of the software we use, most trainers say "numeric" instead of "numpad", it is an idiotic error made by software developers. Most likely in future trainers it will be fixed.

How to use custom hotkeys on any trainer:
http://sethioz.com/hesk/knowledgebase.php?article=30